Watchcase vulcanizer



Oct. 29,

.Num

A. J. FLEITER ET AL WATGHCAVSE VULCANIZER l Filed Dec. 3. 192.6

2r Sheets-Sheet 1 ATTORNEYS.

GCR 29g 1929 A. J. FLE-ITER Er AL, l 1,733,151

WATHCASE VULGANI Z ER Filed Dec. 5, 1926 2 Sheets-Sheet 2 INVENTORJ. /vonsw .7. )QE/rse,

A TTORNEYS.

@- Q. BY

Patented Oct. 29, 1929 UNITED STATES PATENT oFFl'cE ANDREW J. FLEITE-R, 0F AKRON, AND HENRY C.A BOSTWICK, OF KE-NMIO'BE, OHIO, AS-

SIGNORS, BY MESNE ASSIGNMENTS, TO THII GENEBAL-TIRE & RU'BBIIR` COMPANY, OF AKRON, OHIO, A CORPORATION OF OHIO WATCHCASE vULcA'NTzEa y Application led December 3, 1926. Serial No. 152,387.

This invention relates to watchcase or like vulcanizersv including relatively movable derstood that the invention is not limitedto the specific form thereof shown and described.

Of the accompanying drawings,

Figure 1 is an elevation of a watchcase vulcanizer embodying the invention;

Figure 2 is a section on line 2-2 of Figure 1; i

Figure 3` is a section on line 3-3 of Figure 1; and

Figure 4 is a section on line 4--4 of Figure 1. y

Referring to the drawings, the numeral 10 designates a suitable supporting standard on which is mounted the usual central, annular, steam back member 11 of a watchcase vulcanizer having a chamber 12 therein in which steam is circulated and having grooves 13, 13 in its opposite outer faces for the reception of mold sections 14, 14 removably secured therein and in which various rubber articles, such as tire beads 15, 15, may be cured.

Arranged to cooperate with the outer faces of the central member 11 are annular sections 16, 16 having steam chambers 17, 17 therein and hinged at 18, 18 onto central member 11. Theinner faces of sections 16 have grooves 19, 19 therein in which are removably secured mold sections 20, 20 arranged to cooperate with mold sections 14 when the vulcanizer sections 16 are swung into cooperationwith the steam back member 11.

Secured within the central Aopening of the member 1l is a member 2l providing opposed, axially extending cylinders 22, 22 closed at their outer endsby heads 23, 23 and having pistons 24, 24 therein to which are secured piston rods 25, 25 extending through heads 23. vMembers 26, 26 are secured across the central openings of vulcanizer sections 16 and have apertures 27, 27 therein through which piston rods 25 extend. For lookin the vulcanizer, pistonsz25 each carry on tlgieir outer ends a rotatable member 28 so shaped as to be adapted to be moved into engagement with a member 26 across an aperture 27 in one position thereof as shown in Figure 3 and, in another position, as' shown in dotted lines in Figure 2, to permit swinging of the section 16 awa from the central member 11. v

Pistons 25 preferably have for-med' thereon flanges 25a arranged to' engage members 26 as the vulcanizer is unlockedv to,break the vulcanizer sections 16 and 11 apart, whereupon the sections 16 can be swung completely open by hand. Y

Supply. of fluid pressure to the inner sides of pistons 24 may be effected by provision of ducts 30, 30 extended throuvh a tube 31 in steam back member 11 and through the wall of member 21. Sup ly of Huid ressure to the outer ends of cylin er 24 may e effected by ducts 32, 32 extended through tube 33 in -member 11 and ducts 34, 34 1n thev wall of member`2l.

In operatiomeach side of the apparatus is employed for curing operations independently of the other. While a section J6 is in open position, the articles to be cured, such as the beads shown, are placed in the mold sections 14. The section 16 of the vulcanizer is then swung against central section 11, member 26 clearing the rotatable locking member which is set so, that it will, in effect, pass through aperture 27 as the section 16 is swung shut. The member 28 is then swung to a position so as to be engaged with member 26 across aperture 27 and is moved into such engagement by supply of iuid pressure to the outer side of piston 24, which fluid pressure is maintained to lock the vulcanizer sections together throughouty cure of the yarticles therein. v 4

After the curing ofthe articles is com. pleted, the pressure on the outer side of piston 24 is relieved and pressure is supplied to the inner side thereof to move member 28 away from member-26 and to en age fiange HL with member 26 to breakt e sections 16 and 11. Member 28 may now be rotated to a position permitting vulcanizer section 16 to be swung open, which operation is then performed, the cured article being removed and the foregoing sequence of operations being repeated.

It will be apparent that a simple but effective locking device has been provided for this type of vulcanizer. It ,will also be apl parent that an improved combination, in-

cluding a locking and mold breaking device, has been produced. Other than the specific forms herein-shown may be employed without sacrificing alll of the benefits'of tlieinvention. Accordingly, modifications of the invention maybe resorted to Without departing from the spirit thereof or thescope of the appended claims.

. What is claimed is:

' 1. A watchcase vulcanizer comprising a central, annular, mold supporting member, hinged, annular, mold carrying sections arranged to cooperate with the central member, and means for locking the hinged sections to the central member, said means-comprising opposed, axially directed cylinders arranged in the central opening of the central member, apertured members arranged across the central openings of the hinged members, pistons in the cylinders, piston rods extending from the pistons through the apertured members, locking members! on the outer ends of the pistons rotatable thereon either to positions wherein they extend across theapertures in the apertured members for engagement therewith or to positions wherein they Will permit the hinged members to be swung open, fianges on the piston rods inwardly of the apertured members arranged for engagement with such apertured members to separate the hinged members from the central member at the completion of a curing operation and means for supplying fluid pressure to either side of the pistons.

2. A vulcanizer comprisingk a stationary section and a movable section, a cylinder ar-v ranged at the axis of the vulcanizer, a piston in the cylinder, a rotatable locking member operable bythe piston, an apertured member connected to the movable section, said apertured member being adapted to be engaged by the locking member inv one of. its angular positions to be actuated by the piston to clamp member.

A. J. FLEITER. HENRY C. BOSTWICK. 

